Pith Number

pith:BOHYVWOL

pith:2020:BOHYVWOLULIKRNFU7SKBQELUPF

not attested not anchored not stored refs pending

Digital Twins

Dirk Hartmann, Herman van der Auweraer

arxiv:2001.09747 v1 · 2020-01-03 · cs.CY

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BOHYVWOLULIKRNFU7SKBQELUPF}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T00:36:03.144846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b8f8ad9cba2d0a8b4b4fc941811747978645dde4c4649655c203f8e554abdfc

Aliases

arxiv: 2001.09747 · arxiv_version: 2001.09747v1 · doi: 10.48550/arxiv.2001.09747 · pith_short_12: BOHYVWOLULIK · pith_short_16: BOHYVWOLULIKRNFU · pith_short_8: BOHYVWOL

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/BOHYVWOLULIKRNFU7SKBQELUPF \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 0b8f8ad9cba2d0a8b4b4fc941811747978645dde4c4649655c203f8e554abdfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e51709eda7ad19d9986f2cfe915e6d0e187924f4b1fcaa7efa357068ca47728",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2020-01-03T19:20:47Z",
    "title_canon_sha256": "b63efa8140909fef9d966c011c0a681edfa54165f0e638b1bde215f9a8b613c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2001.09747",
    "kind": "arxiv",
    "version": 1
  }
}